Detection and Characterization of a New Strain of Citrus Canker Bacteria from Key/Mexican Lime and Alemow in South Florida

Plant Disease
Xiaoan SunBruce D Sutton

Abstract

In the Wellington and Lake Worth areas of Palm Beach County, FL, citrus canker appeared on Key/Mexican lime (Citrus aurantiifolia) and alemow (C. macrophylla) trees over a period of about 6 to 7 years before detection, but nearby canker-susceptible citrus, such as grapefruit (C. × paradisi) and sweet orange (C. sinensis), were unaffected. Colonies of the causal bacterium, isolated from leaf, stem, and fruit lesions, appeared similar to the Asiatic group of strains of Xanthomonas axonopodis pv. citri (Xac-A) on the nutrient agar plate, but the growth on lima bean agar slants was less mucoid. The bacterium produced erumpent, pustule-like lesions of typical Asiatic citrus canker syndrome after inoculation into Key/Mexican lime, but brownish, flat, and necrotic lesions on the leaves of Duncan grapefruit, Madame Vinous sweet orange, sour orange (C. aurantium), citron (C. medica), Orlando tangelo (C. reticulata × C. × paradisi), and trifoliate orange (Poncirus trifoliata). The bacterium did not react with the Xac-A specific monoclonal antibody A1 using enzyme-linked immunosorbent assay (ELISA) and could not be detected by polymerase chain reaction (PCR)-based assays using primers selected for Xac-A. DNA reassociation analysis confirm...Continue Reading

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Citations

Jan 30, 2014·Proceedings of the National Academy of Sciences of the United States of America·Yang HuJeffrey B Jones
Jan 16, 2007·Applied and Environmental Microbiology·B El YacoubiD W Gabriel
Nov 14, 2007·Proceedings of the National Academy of Sciences of the United States of America·Wenbin LiJohn S Hartung
May 8, 2010·Applied Microbiology and Biotechnology·Adrián Alberto VojnovMarìa Rosa Marano
Jun 20, 2017·EFSA Journal·UNKNOWN EFSA Panel on Plant Health (PLH)Claude Bragard
Jan 10, 2017·Annals of Botany·Ronaldo J D DalioMarcos A Machado
Jun 9, 2016·Molecular Plant Pathology·Junli ZhangFrank F White
Feb 12, 2017·Chembiochem : a European Journal of Chemical Biology·Flaviana Di LorenzoAntonio Molinaro
Jan 30, 2021·Plant Communications·Muhammad Junaid RaoQiang Xu

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